Per-link (TWT, R-TWT) procedure support and state switches for EMLSR or ELMLR co-affiliated stations

Operating non-Access Point Multi-Link Devices (non-AP MLD), comprising more than one affiliated stations (STA), within a wireless network, using link-specific procedures to prioritise reception of beacon frames and thus improve the coexistence of Enhanced Multi-Link Operating Modes (EML OM): Enhanced Multi-Link Single Radio (EMLSR) and Enhanced Multi-Link Multi-Radio (EMLMR). A first affiliated station of a non-AP MLD may receive a first beacon frame, including a Target Beacon Transmission Time (TBTT) relating to a second beacon frame, over a first link; and be configured in a receiving state at the TBTT to receive the second beacon frame. Alternatively, an affiliated station may be configured to ignore an initial frame that triggers a frame exchange sequence overlapping in time with a beacon frame received by another affiliated station. Or, an AP MLD may transmit beacon frames on a first link to schedule service periods for a non-AP MLD that do not overlap in time with any beacon frames transmitted by the AP MLD over a second link. Or, suitable padding durations and delays may be selected. Multi-Link Operation (MLO) is introduced in IEEE 802.11be (Extremely High Throughput (EHT)), allowing for communications between STAs over multiple concurrent and non-contiguous communications links, and whereby non-AP MLDs may register with an Access Point MLD (AP MLD).